The great difficulty in education is to get experience out of ideas.
The man who is fond of books is usually a man of lofty thought, and elevated opinions.
A thought is an idea in transit.
The man who does not read good books has no advantage over the man who can't read them.
Study without desire spoils the memory, and it retains nothing that it takes in.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
Knowledge becomes evil if the aim be not virtuous.
In mathematics you don't understand things. You just get used to them.
For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.
Books are as useful to a stupid person as a mirror is useful to a blind person.
Never help a child with a task at which he feels he can succeed.
Investigate, educate and organize the country must progress, productive works and industries are the main avenues at present next to education for the advancement of the country
Know what you are talking about.
The task of a writer is not to solve the problem but to state the problem correctly.
Knowing is not enough; we must apply. Willing is not enough; we must do.
Dare to think for yourself.
Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
Books are for people who wish they were somewhere else.
Evil being the root of mystery, pain is the root of knowledge.
Men are born ignorant, not stupid. They are made stupid by education.